心脏横径和心胸比率与左心室容积及收缩功能的相关性研究  

Correlation study of transverse cardiac diameter,cardiothoracic ratio and left ventricular volume and systolic function

作　　者：荣凡令[1] 祝因苏[1] 刘波[1] 唐立均 

机构地区：[1]南京医科大学第一附属医院放射科,江苏南京210029

出　　处：《医学影像学杂志》2015年第8期1354-1357,共4页Journal of Medical Imaging

基　　金：江苏高校优势学科建设工程资助项目(JX10231801)

摘　　要：目的探讨心脏横径(TCD)和心胸比率(CTR)与左心室容积及收缩功能的相关性,观察两者在预测左心室大小及功能中的作用。方法回顾分析184例疑似冠心病均行心脏远达片及双源CT冠脉造影患者资料。两名观察者独立在心脏远达片上测量TCD及CTR。左心室容积及收缩功能参数如左心室舒张末期容积(LVEDV)、收缩末期容积(LVESV)及左心室射血分数(LVEF)利用半自动心功能处理软件在双源CT冠脉造影图像上获得。然后采用Pearson相关分析TCD及CTR与左心室容积及收缩功能的相关性。结果 TCD与LVEDV及LVESV呈显著正相关(r=0.51、0.33,P<0.0001),但其与LVEF相关性无统计学意义。LVEDV和LVEF呈显著负相关(r=-0.48,P<0.0001)。CTR与左心室容积及收缩功能均无相关性。结论 CTR不能作为预测左心室容积及收缩功能的指标,TCD可以作为评估左心室容积的重要参数,左心室容积在预测左心室收缩功能中有重要价值。Objective To investigate the correlation between the transverse cardiac diameter(TCD),cardiothoracic ratio(CTR)and left ventricular(LV)systolic function parameters.Methods A retrospective analysis of 184 subjects suspected with coronary artery disease,who underwent chest radiography and dual source computed tomography coronary angiography(DSCT-CA),was performed.The TCD and CTR were derived from chest radiography.The LV systolic function parameters,such as LV end-diastolic volume(LVEDV),LV end-systolic volume(LVESV)and LV ejection fraction(LVEF)were measured from DSCT-CA.The relationship of CTR and LV systolic function parameters was analyzed respectively using Pearson correlation.Results The TCD was significantly correlated with LVEDV and LVESV(r=0.51,0.33,P <0.0001),but with no statistically significant correlation with LVEF.LVEDV was negatively correlated with LVEF(r=-0.48,P <0.0001).There was no significant relationship between CTR and LV systolic function parameters(LVEDV,LVESV and LVEF).Conclusion CTR is not a reliable indicator of LV systolic function and size in patients mostly with preserved LVEF.TCD can be an important parameter to assess LV volume.LV volume is correlated with LV systolic function.

关 键 词：心脏横径 心胸比率 左心室容积 左心室收缩功能 

分 类 号：R445.1[医药卫生—影像医学与核医学] R541.4[医药卫生—诊断学]